Sash lock



FIG. 1 is a view in perspective of a sash lock showing my new design,

FIG. 2 is a top plan view thereof,

FIG. 3 is a bottom plan view thereof,

FIG. 4 is an end elevational view thereof,

FIG. 5 is a front elevational view thereof, and,

FIG. 6 is a rear elevational view thereof.

The ornamental design for a sash lock, as shown.